Hot search keywords

The Qtum open-source community released its whitepaper: Value Transfer Network and DAPPs Platform in August 2016. The whitepaper reveals a third blockchain ecosystem aside from the Bitcoin and the Ethereum ones. Qtum is committed to build a open-source community ecosystem with influence on a global scale through innovation in community, third party developers and technology. The ultimate goal is to integrate blockchain into financial sectors, social network, gaming industry, internet of things etc.

Shuai Chu is one of the early adopters among the Chinese community. He graduated from Chinese Academy of Sciences with doctoral degree in computer. He started research blockchain in 2011 and quit Alibaba to start his own business. With various involvement in blockchain projects, he accumulated rich experience in blockchain development and put them into a technology document How to build your own blockchain from 0 to 1.

The motive behind initiating the Qtum project is that: Chinese has no authority on blockchain development. Not a single Chinese could be found in the bitcoin core developers. AFIK, There are only two Chinese developers among the 40 core developers in the Ethereum dev team.

One reason is that the Chinese are interested in mining and exchange business. They didn’t see much importance in coding.

We found very few involvement from Chinese after a number of protocols and new apps were released. We want to build a platform and an ecosystem in China that has a strong development and community support.

A more pressing issue for the Qtum project is that the blockchain development in China is still in its infancy and cannot keep up with the fast pace of business demand. Shuai Chu said:

For example, several hundred apps have been developed over the ethereum network for the past two years. Despite its success, the problems encountered by the ethereum network are common seen by the whole community, like the online transaction speed, the scaling issue. Also the smart contract thing is at inception stage, which not strong enough to support the growing demand of the whole industry.

Qtum Blockchain Structure

Qtum proposes improvement to the issues in the bottom layer of blockchain. After multiple communications with financial institution and enterprises, Qtum team discovered that the the banking and financial institutions were seeking blockchain solutions but it’s not realistic for them deploy ASIC miners on a large scale to maintain the network security. Therefore mining mechanism was discarded in Qtum design. Network is secured by IPOS（Incentive Proof of Stake）so that small stake-holders are also properly incentivized.

The performance of the consensus system is good.

Shuai Cu said.

Sometimes blockchain network is DDOS attacked and on-chain transaction is nearly frozen. In order to solve the problem, Qtum separate the common tx from smart contract tx. In the Qtum network, Transaction Ledger allows traceable transaction based on UTXO feature, and Contract Ledger will host contract-type tx. The most straightforward benefits of dual layers is when contract transaction are DDOSed, normal transaction could proceed without problem. Shuai Cu said:

Sending and receiving are the most fundamental feature of a blockchain network, which should be prioritized to process. Smart contract transaction could wait and a upper layer feature. First we need to ensure the reliability and security of bottom layer.

Qtum explores various application scenarios in integrating with current business and society, including logic to comply with regulation through Oracle and Data Feed. Shuai Cu told 8btc that “Bitcoin blockchain is somehow a closed system. It is actually self-sufficient, with all participants forming a closed circle that is detached from the outside world. While Oracle and Data Feed offer a channel to introduce offchain features to be seen onchain without compromising the network security.

Another world’s first from Qtum is the concept of Master Contract. You may find Smart Contract and Master Contract in the Qtum system. For instance:

A contract signed by two banks could be terminated with the consensus of the two banks alone. A master contract gives total control to the contract-singers over the execution or termination of the contracts. That’s a mimic of real-life scenario. The Master Contract is a great step forward, bringing new potential to the blockchain application and extending the concept of smart contract.

As we all know that the public blockchain in existence are not acknowledged by banking or financial institutions due to the lack of ID idenfication or permissioned access. The issue has been taken into consideration by Qtum at the very beginning. Qtum set ID identification as an non-required option, allowing user to proceed with identification via the third party or use the network anonymously. They are distinguished by different types of accounts and address. Users with ID can get more priority service when accessing financial service.

More features are often linked to a more complicated system Does it lead to more attack vectors to the Qtum system? Shuai Cu:

We believe that attack vectors could be contained via separation of on-chain behaviour and off-chain behaviour. It’s true that system has become more complicated. But it’s worthy of exploration and research for its practical business value. We hope to do our part in expanding the blockchain boudaries. ”
Why Qtum is willing to build open-source community and ecosystem from ground zero despite its’ obvious difficulty?

Shuai Cu told 8btc:

There are few dev teams that are truly into the blockchain technology. Many teams abroad are developing applications but genuine breakthrough in technology and innovation are difficult, so is improvements over existing system. With reference to the software development in China for the past two or three decades, we cannot exert influence on many open-source projects due to the lack of thorough research. We need to grasp the bottom layer technology to guide the future business development. We see the potentials of blockchain implementation and early research and systematic development will prove worthy of investment in the future.

With the completition of alpha test of testnet, Qtum’s code base will be opensource in the following months. Qtum development team currently has 10 developers, mostly of whom are found within the community . The team wish more developers and partners to join the Qtum open source community.
It’s impossible to predict if large-scale business implementation in the future will be based on Qtum network. But it’s obvious that the Qtum’s practical innovations facilitates more enterprise to access the blockchain technology.

Learn cryptocurrency and digital assets since 2013 and co-founder of 8btc in 2014. Co-author of 2014-2015 Digital Currency Development Report(2015) and first author of Investment Guidelines To Blockchain Digital Currency (Published in June 2017 ISBN:9787300239286).

COMMENTS(117)

2 years agocrzybilly

Quote from: Qtum on December 19, 2016, 04:45:44 AM

Qtum (Quantum) is an open source, decentralized project that aims to capitalize on the success of Bitcoin, while competing for the Decentralized Application (DAPP) and Smart Contract market. Our goal is to work with industry partners, and launch the first Value Transfer Protocol (VTP). This will streamline [Suspicious link removed]patibility into daily business routines, and allow for easier adoption. Qtum aims to become the first platform with Smart Contracts that execute as part of an Unspent Transaction Output (UTXO).Instead of reinventing the wheel with a completely new codebase, Qtum is based on Bitcoin Core v0.13 and Proof-of-Stake 3.0 (POS). Qtums method allows Smart Contracts to be operated without the need for accounts, and existing Ethereum applications can be ported to the Qtum Blockchain. Qtum Core development will be directed by the Qtum Foundation, which will be overseen by an established auditing firm.This project aims not to be another medium for exchange, there are enough Blockchain projects to fill this demand. Instead, focus will be directed at various sectors where technology could streamline operations. All of this will fall into the framework of Decentralized Applications, based on a modified version of the Ethereum Virtual Machine. There is a need for a stable codebase, consumers and businesses want confidence that their monetary value is not at risk of sudden incidents. This is why we are basing Quantum on Bitcoin Core for stability, and Blackcoin POS3.0 for consensus.Technical Summary
In this section we will discuss the Qtum Blockchain, a new Cryptocurrency created for consumers and businesses. Qtum is designed to be secure, stable, and fast. Quantum has expanded the scripting language of Bitcoin Core, so that it will now be possible to run Smart Contracts based on the Unspent Transaction Output model (UTXO). This means Qtum will not require the use of accounts to execute contracts between interested parties. Existing Ethereum Smart Contracts can be ported to Qtum with minimal changes. Other virtual machines and programming languages will be supported as the project matures. There will be functionality for third party data feeds and oracles, along with off chain data processing. Qtums consensus model will utilize Sunny Kings classic Proof-of-Stake, which will secure the Blockchain, while rewarding coin holders. Qtum aims to bring a new Value Transfer Protocol to the industry. Bitcoin has done a tremendous service to the commerce and finance industry by providing a means of value transfer, and we would like to expand on this momentum. We plan to support the Qtum Blockchain with Smart Contracts that allow users to control coins by taking advantage of various Internet Protocols.One project that will be released as a working beta is SpringEmail, which uses a modified Simple Mail Transfer Protocol (SMTP). This allows users to send and receive Qtum as part of an e-mail. We call this hybrid protocol BiSMTP. This should lessen the learning curve for users interested in Qtum but do not have a wallet.For more information, please see:http://www.8btc.com/qtum-springemail-bismtpOne of Qtums growth strategies is the mobile telecommunications market. There is a vast amount of consumers that may not be aware of digital currencies, but could be introduced to Qtum by means of a viral marketing campaign. This does not mean that the average user isnt accustomed to paying with their mobile devices. In China, Wechat leverages their userbase of over half a billion people, to make payments for everyday goods and services. Just like Apple Pay, they make a quick scan with their device at the point of sale, and the money is deducted from their account. We plan to build Quantum applications that integrate into the popular messaging platforms like: Wechat, WhatsApp, Viber, and so forth. We call this the Qtum Go Mobile strategy. The English version of the whitepaper is being edited, and will be released in January 2017.To summarize, the technical features of Qtum include:1. Ethereum Virtual Machine running on the Bitcoin UTXO model 2. Compatibility layer for Ethereum Blockchain model, which allows for easy porting of existing Ethereum and Solidity contracts3. Blackcoin’s Proof Of Stake 3.0, which ensures efficiency and security4. Ability to manage contracts from mobile wallets without running a full node5. Most existing tools built for Bitcoin and some BIPs will continue to be compatible with Qtum blockchain6. Oracles and datafeeds built on top of the Ethereum Virtual Machine OPPORTUNITY
Qtum plans to deliver a business friendly platform that can push forward Blockchain technology. This means its not just a retail coin, in which a merchant can create invoices for products or services. The opportunity for industry and business to make use of a public ledger is enormous. For an entity to be able to sell a product or service, provide the customer proof of purchase, and then maintain that item throughout its lifespan is invaluable. There is big interest in Blockchain technology, especially in the finance industry. Currently, banks are applying for many Blockchain patents. This may be because they are fact finding, or plan to adopt technology into their core products and services. A lot of large corporations find themselves becoming too big, stale, and uncompetitive. Blockchain (and other disruptive technology) may threaten their business model in the years to come.Through the Qtum Foundation, our goal is to facilitate these large organizations to adopt digital currency and blockchain technology into their mainstream operations. We will do this simply by introducing the power of Blockchain technology, and see whether theres a place for it in their business model. Qtum is currently talking with a few corporations in China about strategic partnerships, but it is still too early to make announcements. At this point, the main focus is the social network, telecommunications, finance, and supply chain industries. Third party development will play a large role in the adoption of Qtum (and Blockchain as a whole). At this stage, most industries we have spoken with are curious about Blockchain, and whether it can improve or threaten their business.Meet Our Team:Qtum core team comprises of several members, spanning the globe. Patrick Dai (China/Singapore) – Project Co-FounderNeil Sakr (Morocco/China) – Chief Blockchain Architect / Co-FounderJordan Earls (USA) – Lead Developer / Co-FounderCaspal (China) – Qtum Developer Qiyu (China) – Qtum Web developerDJaen (Sweden) – Qtum Test developerTime Markov (Macedonia)- Qtum DeveloperToni Markov (Macedonia)-Qtum DeveloperAlex (Belarus)- Qtum DeveloperMike Palencia (China / Colombia) – Project ManagerBrett (Canada) – PR / CommunityJohn Scianna (USA / China) – PR / PressIbai Basabe(USA/China)-PhD Product Manager/ResearcherEmiliano (Argentina) – PhD Document Writer / ResearcherCarry Shen (China) – PricewaterhouseCoopers (PWC) process control Community
Website: Launching soonSource code: https://git.qtum.org/qtum/ Source will be available soonTwitter: https://twitter.com/QtumOfficialQQ group: 518192421Slack channel: https://qtumslack.herokuapp.com/Wechat group:
Bounties are available, and will be listed soon. Please post what you can offer in the thread.Press:Quantum has generated some press, due to our attendance at conferences and Blockchain events. Some press sites have picked up on our development before officially launching, please visit these links below:
Global Blockchain Summit in Shanghai: “Uniting the Networks” of Blockchain Technology
petition/]Uport, An Ethereum Based Identity Project Wins the [Suspicious link removed]petition
Qtum Blockchain Ports POS 3.0 to Bitcoin Core 0.13
/2dYGVui]How to receive ICN tokens in your own Ethereum Wallet
Qtum Introduces Master Contracts and ID Identification
Qtum Virtual Machine and Gas Mechanism Design Principle Part One
Qtum Innovation Project, Building an Ecosystem Other Than Bitcoin and Ethereum
Qtum: Building The Bridge
Qtum Team Wins The Best Innovation At Second Global Blockchain Summit
Will The Financial Industry Use Blockchain? Qtum Offers This Possibility
Quantum Team Wins MVP
Why Build Another Blockchain?
Qtum Chinese Whitepaper
Helping Newcomers Use Blockchain Technology
Qtum Team Introduces New Blockchain
IBM Blockchain Summit 2016 Best Innovation Award
Qtum Announces Their First Community Project: SpringEmail

Qtum (Quantum) is an open source, decentralized project that aims to capitalize on the success of Bitcoin, while competing for the Decentralized Application (DAPP) and Smart Contract market. Our goal is to work with industry partners, and launch the first Value Transfer Protocol (VTP). This will streamline [Suspicious link removed]patibility into daily business routines, and allow for easier adoption. Qtum aims to become the first platform with Smart Contracts that execute as part of an Unspent Transaction Output (UTXO).Instead of reinventing the wheel with a completely new codebase, Qtum is based on Bitcoin Core v0.13 and Proof-of-Stake 3.0 (POS). Qtums method allows Smart Contracts to be operated without the need for accounts, and existing Ethereum applications can be ported to the Qtum Blockchain. Qtum Core development will be directed by the Qtum Foundation, which will be overseen by an established auditing firm.This project aims not to be another medium for exchange, there are enough Blockchain projects to fill this demand. Instead, focus will be directed at various sectors where technology could streamline operations. All of this will fall into the framework of Decentralized Applications, based on a modified version of the Ethereum Virtual Machine. There is a need for a stable codebase, consumers and businesses want confidence that their monetary value is not at risk of sudden incidents. This is why we are basing Quantum on Bitcoin Core for stability, and Blackcoin POS3.0 for consensus.Technical Summary
In this section we will discuss the Qtum Blockchain, a new Cryptocurrency created for consumers and businesses. Qtum is designed to be secure, stable, and fast. Quantum has expanded the scripting language of Bitcoin Core, so that it will now be possible to run Smart Contracts based on the Unspent Transaction Output model (UTXO). This means Qtum will not require the use of accounts to execute contracts between interested parties. Existing Ethereum Smart Contracts can be ported to Qtum with minimal changes. Other virtual machines and programming languages will be supported as the project matures. There will be functionality for third party data feeds and oracles, along with off chain data processing. Qtums consensus model will utilize Sunny Kings classic Proof-of-Stake, which will secure the Blockchain, while rewarding coin holders. Qtum aims to bring a new Value Transfer Protocol to the industry. Bitcoin has done a tremendous service to the commerce and finance industry by providing a means of value transfer, and we would like to expand on this momentum. We plan to support the Qtum Blockchain with Smart Contracts that allow users to control coins by taking advantage of various Internet Protocols.One project that will be released as a working beta is SpringEmail, which uses a modified Simple Mail Transfer Protocol (SMTP). This allows users to send and receive Qtum as part of an e-mail. We call this hybrid protocol BiSMTP. This should lessen the learning curve for users interested in Qtum but do not have a wallet.For more information, please see:http://www.8btc.com/qtum-springemail-bismtpOne of Qtums growth strategies is the mobile telecommunications market. There is a vast amount of consumers that may not be aware of digital currencies, but could be introduced to Qtum by means of a viral marketing campaign. This does not mean that the average user isnt accustomed to paying with their mobile devices. In China, Wechat leverages their userbase of over half a billion people, to make payments for everyday goods and services. Just like Apple Pay, they make a quick scan with their device at the point of sale, and the money is deducted from their account. We plan to build Quantum applications that integrate into the popular messaging platforms like: Wechat, WhatsApp, Viber, and so forth. We call this the Qtum Go Mobile strategy. The English version of the whitepaper is being edited, and will be released in January 2017.To summarize, the technical features of Qtum include:1. Ethereum Virtual Machine running on the Bitcoin UTXO model 2. Compatibility layer for Ethereum Blockchain model, which allows for easy porting of existing Ethereum and Solidity contracts3. Blackcoin’s Proof Of Stake 3.0, which ensures efficiency and security4. Ability to manage contracts from mobile wallets without running a full node5. Most existing tools built for Bitcoin and some BIPs will continue to be compatible with Qtum blockchain6. Oracles and datafeeds built on top of the Ethereum Virtual Machine OPPORTUNITY
Qtum plans to deliver a business friendly platform that can push forward Blockchain technology. This means its not just a retail coin, in which a merchant can create invoices for products or services. The opportunity for industry and business to make use of a public ledger is enormous. For an entity to be able to sell a product or service, provide the customer proof of purchase, and then maintain that item throughout its lifespan is invaluable. There is big interest in Blockchain technology, especially in the finance industry. Currently, banks are applying for many Blockchain patents. This may be because they are fact finding, or plan to adopt technology into their core products and services. A lot of large corporations find themselves becoming too big, stale, and uncompetitive. Blockchain (and other disruptive technology) may threaten their business model in the years to come.Through the Qtum Foundation, our goal is to facilitate these large organizations to adopt digital currency and blockchain technology into their mainstream operations. We will do this simply by introducing the power of Blockchain technology, and see whether theres a place for it in their business model. Qtum is currently talking with a few corporations in China about strategic partnerships, but it is still too early to make announcements. At this point, the main focus is the social network, telecommunications, finance, and supply chain industries. Third party development will play a large role in the adoption of Qtum (and Blockchain as a whole). At this stage, most industries we have spoken with are curious about Blockchain, and whether it can improve or threaten their business.Meet Our Team:Qtum core team comprises of several members, spanning the globe. Patrick Dai (China/Singapore) – Project Co-FounderNeil Sakr (Morocco/China) – Chief Blockchain Architect / Co-FounderJordan Earls (USA) – Lead Developer / Co-FounderCaspal (China) – Qtum Developer Qiyu (China) – Qtum Web developerDJaen (Sweden) – Qtum Test developerTime Markov (Macedonia)- Qtum DeveloperToni Markov (Macedonia)-Qtum DeveloperAlex (Belarus)- Qtum DeveloperMike Palencia (China / Colombia) – Project ManagerBrett (Canada) – PR / CommunityJohn Scianna (USA / China) – PR / PressIbai Basabe(USA/China)-PhD Product Manager/ResearcherEmiliano (Argentina) – PhD Document Writer / ResearcherCarry Shen (China) – PricewaterhouseCoopers (PWC) process control Community
Website: Launching soonSource code: https://git.qtum.org/qtum/ Source will be available soonTwitter: https://twitter.com/QtumOfficialQQ group: 518192421Slack channel: https://qtumslack.herokuapp.com/Wechat group:
Bounties are available, and will be listed soon. Please post what you can offer in the thread.Press:Quantum has generated some press, due to our attendance at conferences and Blockchain events. Some press sites have picked up on our development before officially launching, please visit these links below:
Global Blockchain Summit in Shanghai: “Uniting the Networks” of Blockchain Technology
Qtum Blockchain Ports POS 3.0 to Bitcoin Core 0.13
Qtum Introduces Master Contracts and ID Identification
Qtum Virtual Machine and Gas Mechanism Design Principle Part One
Qtum Innovation Project, Building an Ecosystem Other Than Bitcoin and Ethereum
Qtum: Building The Bridge
Qtum Team Wins The Best Innovation At Second Global Blockchain Summit
Will The Financial Industry Use Blockchain? Qtum Offers This Possibility
Quantum Team Wins MVP
Why Build Another Blockchain?
Qtum Chinese Whitepaper
Helping Newcomers Use Blockchain Technology
Qtum Team Introduces New Blockchain
IBM Blockchain Summit 2016 Best Innovation Award
Qtum Announces Their First Community Project: SpringEmail

Greetings! i have some concerns you may address?-why use “real names” if no links to their social media/linkedin accounts? — looks scam-why only free talk groups? free slack, free wechat, free, new twitter (not ONE on your “team” could link their twitter for legitimacy?) –https://www.youtube.com/watch?v=He850TP59SI&t=2s only link that peaked my intrest (not from your OWN site) — dosent say SHIT that i could HEAR–https://www.youtube.com/watch?v=NrGseM-FEOI — buncha dudes inna white room. i guess you SAY it legit so it must be?understand we can be quite jaded here and some take it upon ourselves to ask the hard questionsa team of that many should be able to do more for an ANNouncement, understand. i await your response! P.S: self modded threads lead to hostility quite quickly here…

Quote from: CjMapope on December 19, 2016, 05:47:50 AM
Greetings! i have some concerns you may address?-why use “real names” if no links to their social media/linkedin accounts? — looks scam-why only free talk groups? free slack, free wechat, free, new twitter (not ONE on your “team” could link their twitter for legitimacy?) –https://www.youtube.com/watch?v=He850TP59SI&t=2s only link that peaked my intrest (not from your OWN site) — dosent say SHIT that i could HEAR–https://www.youtube.com/watch?v=NrGseM-FEOI — buncha dudes inna white room. i guess you SAY it legit so it must be?understand we can be quite jaded here and some take it upon ourselves to ask the hard questionsa team of that many should be able to do more for an ANNouncement, understand. i await your response! P.S: self modded threads lead to hostility quite quickly here…

Quote from: CjMapope on December 19, 2016, 05:47:50 AM
Greetings! i have some concerns you may address?-why use “real names” if no links to their social media/linkedin accounts? — looks scam-why only free talk groups? free slack, free wechat, free, new twitter (not ONE on your “team” could link their twitter for legitimacy?) –https://www.youtube.com/watch?v=He850TP59SI&t=2s only link that peaked my intrest (not from your OWN site) — dosent say SHIT that i could HEAR–https://www.youtube.com/watch?v=NrGseM-FEOI — buncha dudes inna white room. i guess you SAY it legit so it must be?understand we can be quite jaded here and some take it upon ourselves to ask the hard questionsa team of that many should be able to do more for an ANNouncement, understand. i await your response! P.S: self modded threads lead to hostility quite quickly here…

– social media will be linked soon.- you will see Twitter link and some famous investors soon.- pls check the YouTube video on second blockchain summit. IBM Blockchain Summit 2016 Best Innovation Award- we welcome hard questions, so we can do this project better.thank you for your support.

good enough, i will await those updates. i am willing to follow for evolution, but need more info than words. can anyone hear that summit link? if i could it would add alot more legitimacy for me, please consider fixing the audioBest luck moving forward! tho its hard to say if this is a gem before seeing that english whitepaper :/

finally qtum announced the ICO. ppl should pay close attention to it. this one is backed by a serious development team and well known advisors in blockchain industry. very revolutionary concept!good luck.

A quick documentation update, we are working on the English version of the whitepaper right now and we wanted to give a snapshot of our progress. Later this week we will have some press that talks about our goals, and a bit about our investors.Here is a section 2 snapshot of the whitepaper, it discusses how we integrate the Ethereum Virtual Machine onto Bitcoin Core’s UTXO model, while using Proof-of-Stake as the consensus protocol.
Here is a link where you can download the section, please keep in mind it was written by a developer and has not gone through a final edit:https://qtum.org/QtumDraftSection24.pdf
Right now the PR team has been giving interviews to western media outlets, so when they run an article, we will post it here and on our blog. The signature campaign will start this week, we are just getting the banners designed and calculating the payment schedule.

Quote from: disconnectme on January 13, 2017, 08:05:50 AM
Have been seen QTUM signature all over the forum, I check your website there is no specific date when the ICO will commence..
Noticed that too, maybe devs are doing something already to release the coins as much as possible. Quote from: disconnectme on January 13, 2017, 08:05:50 AM
Is the signature just to create awareness.
Maybe yes and or maybe no, lets wait answer this.Quote from: Coroline on January 13, 2017, 07:37:14 AM
Hi Dev I wonder you have all bounty programs right well here I want to ask the all bounty is only get reward to BTC payment ? or We can get Qtum coin for rewards ?
As of now, only signature campaigns that pays from bitcoin in service section is active, campaign from altcoin marketplace will be release soon.It would be nice if there’s any social media campaigns(facebook,twitter) for this project also, I will participate if there’s already.

I have read your article, follow me, taking advantage of Bitcoin and Ethereum platform is a smart ideacurrent,Ethereum and Bitcoin virtual currency are the two most powerfulI believe that your project will be a success

Seems like an interesting and promising project in 2017.Hopefully Qtum ICO will success coz you guys are intoducing us a samart idea.However already joined signature campaign next definitely will be watching this ANN thread for further information latest news and other promotion and obviously will feel pretty good if near announced social media campaign.

Qtum seems like a promising project. I’m always glad to see new Blockchain that comes with support for both businesses and consumers while utilizing Bitcoin and ethereum smart contract features. It’s good to know The Mobile market will centered for growth. I’ll be keeping an eye on the to see how Qtum turns out

And what about my payment? I’ve translated your topic to russian. You can check it https://bitcointalk.org/index.php?topic=1749692.0But i didn’t receive any paiment for my job. You’re just ignoring my PM and post in this thread. Ignoring isn’t good strategy for business at this forum.

And what about my payment? I’ve translated your topic to russian. You can check it https://bitcointalk.org/index.php?topic=1749692.0But i didn’t receive any paiment for my job. You’re just ignoring my PM and post in this thread. Ignoring isn’t good strategy for business at this forum.

And what about my payment? I’ve translated your topic to russian. You can check it https://bitcointalk.org/index.php?topic=1749692.0But i didn’t receive any paiment for my job. You’re just ignoring my PM and post in this thread. Ignoring isn’t good strategy for business at this forum.

Was this bounty approved?

How does it’s must be aproved? You can check my translation using this link. I saw that you pay another people for their translations. They just wrote something like “I ll take turkish” and after their work they post here link for it. I did like them.

Quote from: Qtum on December 21, 2016, 12:46:01 AM
Translators are welcome to claim bounties, and will be paid in Bitcoin.Our team can do the translations for:ChineseEnglishSwedishArabicFrench SpanishRussianBelarusianMacedonianWe will approve each bounty, and we ask that the translators post a link to their work and the transaction ID in this thread.There will be bounties for other types of work posted later.

Quote from: johhnyUA on January 13, 2017, 11:24:00 AM

Quote from: Qtum on January 13, 2017, 11:04:46 AM

Quote from: johhnyUA on January 13, 2017, 10:49:04 AM

Quote from: Qtum on January 13, 2017, 07:27:43 AM

And what about my payment? I’ve translated your topic to russian. You can check it https://bitcointalk.org/index.php?topic=1749692.0But i didn’t receive any paiment for my job. You’re just ignoring my PM and post in this thread. Ignoring isn’t good strategy for business at this forum.

Was this bounty approved?

How does it’s must be aproved? You can check my translation using this link. I saw that you pay another people for their translations. They just wrote something like “I ll take turkish” and after their work they post here link for it. I did like them.

We need to approve each bounty, there is almost 100 private messages in this inbox of people trying to claim bounties for (possible) fake translations. One guy has private messaged me 3-5 times a day wanting money for his fake translation for weeks now.This message I quoted clearly states we need to approve each bounty, and we do not need a Russian translation. We have not paid even approved translations for a few days, in the hopes that the Bitcointalk community would catch the dishonest google translate people.We can pay for for your translation, but I don’t want to set a precedent here, this will be an exception. We already have a Russian translation from Alex, others have done one and asked for payment.Post your BTC address and we will pay this within a day or two.

Quote from: Qtum on December 21, 2016, 12:46:01 AM
Translators are welcome to claim bounties, and will be paid in Bitcoin.Our team can do the translations for:ChineseEnglishSwedishArabicFrench SpanishRussianBelarusianMacedonianWe will approve each bounty, and we ask that the translators post a link to their work and the transaction ID in this thread.There will be bounties for other types of work posted later.

Quote from: johhnyUA on January 13, 2017, 11:24:00 AM

Quote from: Qtum on January 13, 2017, 11:04:46 AM

Quote from: johhnyUA on January 13, 2017, 10:49:04 AM

Quote from: Qtum on January 13, 2017, 07:27:43 AM

And what about my payment? I’ve translated your topic to russian. You can check it https://bitcointalk.org/index.php?topic=1749692.0But i didn’t receive any paiment for my job. You’re just ignoring my PM and post in this thread. Ignoring isn’t good strategy for business at this forum.

Was this bounty approved?

How does it’s must be aproved? You can check my translation using this link. I saw that you pay another people for their translations. They just wrote something like “I ll take turkish” and after their work they post here link for it. I did like them.

We need to approve each bounty, there is almost 100 private messages in this inbox of people trying to claim bounties for (possible) fake translations. One guy has private messaged me 3-5 times a day wanting money for his fake translation for weeks now.This message I quoted clearly states we need to approve each bounty, and we do not need a Russian translation. We have not paid even approved translations for a few days, in the hopes that the Bitcointalk community would catch the dishonest google translate people.We can pay for for your translation, but I don’t want to set a precedent here, this will be an exception. We already have a Russian translation from Alex, others have done one and asked for payment.Post your BTC address and we will pay this within a day or two.

Thank you. But in your post you said that you “can do” translation into this languages. And I thought that you hadn’t done it then you posted your message. It would better to say something like “we’ve already done it” or “we do it by ourselves” to cancel situations like that Little missundestanding happened. But thank you that you’ve understood me. my btc address – 1N2w2o2RkRiNQaKKKfdPUzhG6sWfU3qpLV

I like what the team is trying to do, they want to capitalise on the success of both Ethereum and Bitcoin, but I just don’t know if they can do better than RSK. To me the idea is very similar to RSK if not RSK concept.

http://www.coindesk.com/blockchain-angels-invest-1-million-bitcoin-ethereum-hybrid-qtum/https://bitcoinmagazine.com/articles/qtum-connecting-blockchain-technology-with-the-commercial-world-1484145776http://www.nasdaq.com/article/qtum-connecting-blockchain-technology-with-the-commercial-world-cm732079
Qtum (Quantum) is an open source, decentralized project that aims to capitalize on the success of Bitcoin, while competing for the Decentralized Application (DAPP) and Smart Contract market. Our goal is to work with industry partners, and launch the first Value Transfer Protocol (VTP). This will streamline daily business routines, and allow for easier adoption. Qtum aims to become the first platform with Smart Contracts that execute as part of an Unspent Transaction Output (UTXO).Instead of reinventing the wheel with a completely new codebase, Qtum is based on Bitcoin Core v0.13 and Proof-of-Stake 3.0 (POS). Qtums method allows Smart Contracts to be operated without the need for accounts, and existing Ethereum applications can be ported to the Qtum Blockchain. Qtum Core development will be directed by the Qtum Foundation, which will be overseen by an established auditing firm.This project aims not to be another medium for exchange, there are enough Blockchain projects to fill this demand. Instead, focus will be directed at various sectors where technology could streamline operations. All of this will fall into the framework of Decentralized Applications, based on a modified version of the Ethereum Virtual Machine. There is a need for a stable codebase, consumers and businesses want confidence that their monetary value is not at risk of sudden incidents. This is why we are basing Quantum on Bitcoin Core for stability, and Blackcoin POS3.0 for consensus.Technical Summary
In this section we will discuss the Qtum Blockchain, a new Cryptocurrency created for consumers and businesses. Qtum is designed to be secure, stable, and fast. Quantum has expanded the scripting language of Bitcoin Core, so that it will now be possible to run Smart Contracts based on the Unspent Transaction Output model (UTXO). This means Qtum will not require the use of accounts to execute contracts between interested parties. Existing Ethereum Smart Contracts can be ported to Qtum with minimal changes. Other virtual machines and programming languages will be supported as the project matures. There will be functionality for third party data feeds and oracles, along with off chain data processing. Qtums consensus model will utilize Sunny Kings classic Proof-of-Stake, which will secure the Blockchain, while rewarding coin holders. Qtum aims to bring a new Value Transfer Protocol to the industry. Bitcoin has done a tremendous service to the commerce and finance industry by providing a means of value transfer, and we would like to expand on this momentum. We plan to support the Qtum Blockchain with Smart Contracts that allow users to control coins by taking advantage of various Internet Protocols.One project that will be released as a working beta is SpringEmail, which uses a modified Simple Mail Transfer Protocol (SMTP). This allows users to send and receive Qtum as part of an e-mail. We call this hybrid protocol BiSMTP. This should lessen the learning curve for users interested in Qtum but do not have a wallet.For more information, please see:http://www.8btc.com/qtum-springemail-bismtpOne of Qtums growth strategies is the mobile telecommunications market. There is a vast amount of consumers that may not be aware of digital currencies, but could be introduced to Qtum by means of a viral marketing campaign. This does not mean that the average user isnt accustomed to paying with their mobile devices. In China, Wechat leverages their userbase of over half a billion people, to make payments for everyday goods and services. Just like Apple Pay, they make a quick scan with their device at the point of sale, and the money is deducted from their account. We plan to build Quantum applications that integrate into the popular messaging platforms like: Wechat, WhatsApp, Viber, and so forth. We call this the Qtum Go Mobile strategy. The English version of the whitepaper is being edited, and will be released in January 2017.To summarize, the technical features of Qtum include:1. Ethereum Virtual Machine running on the Bitcoin UTXO model 2. Compatibility layer for Ethereum Blockchain model, which allows for easy porting of existing Ethereum and Solidity contracts3. Blackcoin’s Proof Of Stake 3.0, which ensures efficiency and security4. Ability to manage contracts from mobile wallets without running a full node5. Most existing tools built for Bitcoin and some BIPs will continue to be compatible with Qtum blockchain6. Oracles and datafeeds built on top of the Ethereum Virtual Machine OPPORTUNITY
Qtum plans to deliver a business friendly platform that can push forward Blockchain technology. This means its not just a retail coin, in which a merchant can create invoices for products or services. The opportunity for industry and business to make use of a public ledger is enormous. For an entity to be able to sell a product or service, provide the customer proof of purchase, and then maintain that item throughout its lifespan is invaluable. There is big interest in Blockchain technology, especially in the finance industry. Currently, banks are applying for many Blockchain patents. This may be because they are fact finding, or plan to adopt technology into their core products and services. A lot of large corporations find themselves becoming too big, stale, and uncompetitive. Blockchain (and other disruptive technology) may threaten their business model in the years to come.Through the Qtum Foundation, our goal is to facilitate these large organizations to adopt digital currency and blockchain technology into their mainstream operations. We will do this simply by introducing the power of Blockchain technology, and see whether theres a place for it in their business model. Qtum is currently talking with a few corporations in China about strategic partnerships, but it is still too early to make announcements. At this point, the main focus is the social network, telecommunications, finance, and supply chain industries. Third party development will play a large role in the adoption of Qtum (and Blockchain as a whole). At this stage, most industries we have spoken with are curious about Blockchain, and whether it can improve or threaten their business.Meet Our Team:Qtum core team comprises of several members, spanning the globe. Patrick Dai (China/Singapore) – Project Leader/ Co-FounderNeil Sakr (Morocco/China) – Chief Blockchain Architect / Co-FounderJordan Earls (USA) – Lead Developer / Co-FounderCaspal (China) – Qtum Developer Qiyu (China) – Qtum Web developerAlex (Belarus)- Qtum DeveloperTime Markov (Macedonia)- Qtum DeveloperMike Palencia (China / Colombia) – Project ManagerBrett (Canada) – PR / CommunityJohn Scianna (USA / China) – PR / PressIbai Basabe(USA/China)-PhD Product Manager/ResearcherCarry Shen (China) – PricewaterhouseCoopers (PWC) process control Community
Website: Launching soonSource code: https://git.qtum.org/qtum/ Source will be available soonTwitter: https://twitter.com/QtumOfficialQQ group: 518192421Slack channel: https://qtumslack.herokuapp.com/Wechat group:
Bounties are available, and will be listed soon. Please post what you can offer in the thread.Press:Quantum has generated some press, due to our attendance at conferences and Blockchain events. Some press sites have picked up on our development before officially launching, please visit these links below:
Global Blockchain Summit in Shanghai: “Uniting the Networks” of Blockchain Technology
Qtum Blockchain Ports POS 3.0 to Bitcoin Core 0.13
Qtum Introduces Master Contracts and ID Identification
Qtum Virtual Machine and Gas Mechanism Design Principle Part One
Qtum Innovation Project, Building an Ecosystem Other Than Bitcoin and Ethereum
Qtum: Building The Bridge
Qtum Team Wins The Best Innovation At Second Global Blockchain Summit
Will The Financial Industry Use Blockchain? Qtum Offers This Possibility
Quantum Team Wins MVP
Why Build Another Blockchain?
Qtum Chinese Whitepaper
Helping Newcomers Use Blockchain Technology
Qtum Team Introduces New Blockchain
IBM Blockchain Summit 2016 Best Innovation Award
Qtum Announces Their First Community Project: SpringEmail

What about bounty? is it held?and how the workings of this project? I was a bit of confusion to promote itthank you sir .. this good

http://www.coindesk.com/blockchain-angels-invest-1-million-bitcoin-ethereum-hybrid-qtum/https://bitcoinmagazine.com/articles/qtum-connecting-blockchain-technology-with-the-commercial-world-1484145776http://www.nasdaq.com/article/qtum-connecting-blockchain-technology-with-the-commercial-world-cm732079
Qtum (Quantum) is an open source, decentralized project that aims to capitalize on the success of Bitcoin, while competing for the Decentralized Application (DAPP) and Smart Contract market. Our goal is to work with industry partners, and launch the first Value Transfer Protocol (VTP). This will streamline daily business routines, and allow for easier adoption. Qtum aims to become the first platform with Smart Contracts that execute as part of an Unspent Transaction Output (UTXO).Instead of reinventing the wheel with a completely new codebase, Qtum is based on Bitcoin Core v0.13 and Proof-of-Stake 3.0 (POS). Qtums method allows Smart Contracts to be operated without the need for accounts, and existing Ethereum applications can be ported to the Qtum Blockchain. Qtum Core development will be directed by the Qtum Foundation, which will be overseen by an established auditing firm.This project aims not to be another medium for exchange, there are enough Blockchain projects to fill this demand. Instead, focus will be directed at various sectors where technology could streamline operations. All of this will fall into the framework of Decentralized Applications, based on a modified version of the Ethereum Virtual Machine. There is a need for a stable codebase, consumers and businesses want confidence that their monetary value is not at risk of sudden incidents. This is why we are basing Quantum on Bitcoin Core for stability, and Blackcoin POS3.0 for consensus.Technical Summary
In this section we will discuss the Qtum Blockchain, a new Cryptocurrency created for consumers and businesses. Qtum is designed to be secure, stable, and fast. Quantum has expanded the scripting language of Bitcoin Core, so that it will now be possible to run Smart Contracts based on the Unspent Transaction Output model (UTXO). This means Qtum will not require the use of accounts to execute contracts between interested parties. Existing Ethereum Smart Contracts can be ported to Qtum with minimal changes. Other virtual machines and programming languages will be supported as the project matures. There will be functionality for third party data feeds and oracles, along with off chain data processing. Qtums consensus model will utilize Sunny Kings classic Proof-of-Stake, which will secure the Blockchain, while rewarding coin holders. Qtum aims to bring a new Value Transfer Protocol to the industry. Bitcoin has done a tremendous service to the commerce and finance industry by providing a means of value transfer, and we would like to expand on this momentum. We plan to support the Qtum Blockchain with Smart Contracts that allow users to control coins by taking advantage of various Internet Protocols.One project that will be released as a working beta is SpringEmail, which uses a modified Simple Mail Transfer Protocol (SMTP). This allows users to send and receive Qtum as part of an e-mail. We call this hybrid protocol BiSMTP. This should lessen the learning curve for users interested in Qtum but do not have a wallet.For more information, please see:http://www.8btc.com/qtum-springemail-bismtpOne of Qtums growth strategies is the mobile telecommunications market. There is a vast amount of consumers that may not be aware of digital currencies, but could be introduced to Qtum by means of a viral marketing campaign. This does not mean that the average user isnt accustomed to paying with their mobile devices. In China, Wechat leverages their userbase of over half a billion people, to make payments for everyday goods and services. Just like Apple Pay, they make a quick scan with their device at the point of sale, and the money is deducted from their account. We plan to build Quantum applications that integrate into the popular messaging platforms like: Wechat, WhatsApp, Viber, and so forth. We call this the Qtum Go Mobile strategy. The English version of the whitepaper is being edited, and will be released in January 2017.To summarize, the technical features of Qtum include:1. Ethereum Virtual Machine running on the Bitcoin UTXO model 2. Compatibility layer for Ethereum Blockchain model, which allows for easy porting of existing Ethereum and Solidity contracts3. Blackcoin’s Proof Of Stake 3.0, which ensures efficiency and security4. Ability to manage contracts from mobile wallets without running a full node5. Most existing tools built for Bitcoin and some BIPs will continue to be compatible with Qtum blockchain6. Oracles and datafeeds built on top of the Ethereum Virtual Machine OPPORTUNITY
Qtum plans to deliver a business friendly platform that can push forward Blockchain technology. This means its not just a retail coin, in which a merchant can create invoices for products or services. The opportunity for industry and business to make use of a public ledger is enormous. For an entity to be able to sell a product or service, provide the customer proof of purchase, and then maintain that item throughout its lifespan is invaluable. There is big interest in Blockchain technology, especially in the finance industry. Currently, banks are applying for many Blockchain patents. This may be because they are fact finding, or plan to adopt technology into their core products and services. A lot of large corporations find themselves becoming too big, stale, and uncompetitive. Blockchain (and other disruptive technology) may threaten their business model in the years to come.Through the Qtum Foundation, our goal is to facilitate these large organizations to adopt digital currency and blockchain technology into their mainstream operations. We will do this simply by introducing the power of Blockchain technology, and see whether theres a place for it in their business model. Qtum is currently talking with a few corporations in China about strategic partnerships, but it is still too early to make announcements. At this point, the main focus is the social network, telecommunications, finance, and supply chain industries. Third party development will play a large role in the adoption of Qtum (and Blockchain as a whole). At this stage, most industries we have spoken with are curious about Blockchain, and whether it can improve or threaten their business.Meet Our Team:Qtum core team comprises of several members, spanning the globe. Patrick Dai (China/Singapore) – Project Leader/ Co-FounderNeil Sakr (Morocco/China) – Chief Blockchain Architect / Co-FounderJordan Earls (USA) – Lead Developer / Co-FounderCaspal (China) – Qtum Developer Qiyu (China) – Qtum Web developerAlex (Belarus)- Qtum DeveloperTime Markov (Macedonia)- Qtum DeveloperMike Palencia (China / Colombia) – Project ManagerBrett (Canada) – PR / CommunityJohn Scianna (USA / China) – PR / PressIbai Basabe(USA/China)-PhD Product Manager/ResearcherCarry Shen (China) – PricewaterhouseCoopers (PWC) process control Community
Website: Launching soonSource code: https://git.qtum.org/qtum/ Source will be available soonTwitter: https://twitter.com/QtumOfficialQQ group: 518192421Slack channel: https://qtumslack.herokuapp.com/Wechat group:
Bounties are available, and will be listed soon. Please post what you can offer in the thread.Press:Quantum has generated some press, due to our attendance at conferences and Blockchain events. Some press sites have picked up on our development before officially launching, please visit these links below:
Global Blockchain Summit in Shanghai: “Uniting the Networks” of Blockchain Technology
Qtum Blockchain Ports POS 3.0 to Bitcoin Core 0.13
Qtum Introduces Master Contracts and ID Identification
Qtum Virtual Machine and Gas Mechanism Design Principle Part One
Qtum Innovation Project, Building an Ecosystem Other Than Bitcoin and Ethereum
Qtum: Building The Bridge
Qtum Team Wins The Best Innovation At Second Global Blockchain Summit
Will The Financial Industry Use Blockchain? Qtum Offers This Possibility
Quantum Team Wins MVP
Why Build Another Blockchain?
Qtum Chinese Whitepaper
Helping Newcomers Use Blockchain Technology
Qtum Team Introduces New Blockchain
IBM Blockchain Summit 2016 Best Innovation Award
Qtum Announces Their First Community Project: SpringEmail

Maligayang bagong taon!Maraming tao ang nagtataka: “Ano ang Qtum?” At nais naming maglaan ng oras para sa ilang bagay. Plano naming ilabas ang Whitepaper sa unang bahagi ng Enero. Ang anunsyong ito ay inilunsad sa panahon ng holiday season, At kailangan namen ng translation para masagot ang ilang katanungan. At ngayong 2017 na, plano naming magsimula na.Ang aming Lead developer ay gumagawa ng summary ng teknikal kung saan makikita ang development cycle, kaya ito ang unang update ng 2017.
Status ng Quantum Development (Ni Neil Qtum lead developer) Mga pangunahing nakumpletong milestone:1- Quantum model: Ang unang hamon para sa amin ay ang makagawa ng isang modelo para sa Quantum na nakaintegrate parehong sa model ng EVM at Bitcoin UTXO. Ang EVM ay gumagamit ng state database, kaya kinailangan naming patagalin ang kanyang kakayahan para gumana sa model base sa UTXO accounting. While we decided to keep a state database for storing smart contracts code and data, our model uses UTXOs for all financial operations of the EVM. After finishing the model, we moved to the implementation. 2- Quantum Implementation:The implementation was based on Bitcoin core 0.13 and cpp-ethereum EVM part. After integrating the EVM code and dependencies with Bitcoin core, we worked on implementing the Quantum model which required adding support for Quantum smart contracts creation, funding and calling through Bitcoin script, and also adding UTXO support to the EVM.Other implementation details were also finished, including the Quantum gas model, EVM coin picking algorithm and much more.We now have a fully working implementation of the Quantum model which is being currently tested.3- Bitcoin core proof of stake:The proof of stake (PoS 3.0) algorithm was ported from Blackcoin to Bitcoin core 0.13 and is now in final stage testing with dozens of nodes deployed.Whats next?1- Quantum wallets:Work is in progress to make brand new desktop and mobile wallets for Quantum, for the desktop wallet, we are working on a dynamic and user friendly wallet which will include in addition to the classic functionalities, support for smart contract operations and a new innovative design.Our Mobile wallet is also in the works, with versions for iOS and Android, the initial mobile versions are already in testing.2- Merging with proof of stake:We are currently working on merging EVM and PoS branches of Quantum.3- Testing Quantum: We are currently testing the Quantum implementation. In addition to Bitcoin and EVM automated tests, we are writing our Quantum specific test suite. Other than automated testing, manual testing is currently taking place as well. After finishing in-house testing, we will require external code reviews and testing from independent and professional renowned software developers and companies. 4- Releasing Quantum Sparknet (testnet): Once our initial Quantum prototype has passed internal and external testing procedures, it will be time to launch the Quantum testnet code named “Sparknet”. which will be the final real world test before the official release.Maligayang taon ! Mula sa Qtum Foundation”

Hello,Welcome to the Qtum signature and avatar campaign. First off, we would like to say that we plan on following the rules set out by the forum moderators here:https://bitcointalk.org/index.php?topic=1684035.0If you have not read these rules, the TL;DR version is that we will remove you from this campaign if your posts are not constructive. One thing that we would like to mention is that we do not in any way want to control where and what you post, we only ask that your posts are constructive if you wear our signature and avatar. If you decide to trash talk our project, that is fine, but obviously we will stop paying you.We have hired a campaign manager on this forum named BlackMambaPH, he designed our signatures and asked if he could assist in this campaign. We are paying him to design the campaign and enforce the rules, so please respect him. He lives in the Phillipines, so please keep this in mind when you communicate with him, your time zone may be different.This post will be moderated, as there should be no discussion here other than applying to participate. Scam accusations and trolling are fine, just not in this thread please, we will actually delete posts. If you want to troll or complain, please make another thread. We expect there to be a lot of private messages because of this campaign, so please be patient if you send one.This campaign will pay out in Bitcoin, and if necessary we can use an escrow. We’re not sure how an escrow will enjoy sending BTC to hundreds of addresses, so we will let our campaign manager deal with that problem if it comes up.All bitcoins paid will originate from the Qtum Foundation address: 1qtum1H39JbLjkBZGg4HVsrt9KD6FMS3gFor those of you reading this thread, the official Qtum thread is here:https://bitcointalk.org/index.php?topic=1720632.0Our official twitter is here:https://twitter.com/QtumOfficialThe development team indicated Alex (https://qtum.org/team/)
His profile on LinkedIn https://www.linkedin.com/in/dulub/deHis profile on Youtube https://www.youtube.com/user/dulubao
He knows that he is in the team Qtum ? Give all the links on the team.

Q) I have read the qtum whitepaper over last 1 hour so understanding may not be 100% but this is my assessment. Basically it is just another bitcoin fork with extension to the bitcoin scripting language to support solidity contracts?A) First of all, Qtum is far from being just another bitcoin fork. We have a vision for the Qtum project and one of the biggest and most professional teams ever seen in crypto with support from real world companies and investors. Our goals for Qtum go far beyond the crypto scene and it will be a top project, not just another fork.Our choice of bitcoin core as a main base for Qtum is based on the fact that bitcoin is the most mature, stable and secure blockchain available, in comparison to ethereum or bitshares or others which are still considered unstable with the numerous problems and security issues they had since they launched. In addition to bitcoin having the biggest support from the community which offers a large collection of tools and software related to bitcoin which can be used by quantum as well, in contrast to the other blockchains which sometimes lack even the simplest software (mobile wallets, stable desktop wallets ).Also we use bitcoin script as a bridge between the EVM and regular transaction, the Qtum model was very well designed, and is much more complicated than you make it sound.
Q) There is no compelling reason to choose UTXO over smart contract via balance. It is like comparing a general journal vs a general ledger, which is better? The answer is it depends. I guess it is only UTXO because it is using a bitcoin fork and calling it UTXO as a feature is just a gimmick. In fact i suspect scalability becomes bigger problem since you need to maintain SPV to manage UTXO for multiple different states? Will be interesting to see how to implement wallets. Does that make hyperledger better since they supports both utxo and balance?A) Our choice of UTXO is simply choosing the best technology, there have been some efforts made through some articles to make the account model seem as performant and secure as the UTXO model, however, its not. Without going into much details, the account model is too naïve and simplistic and offers no parallelism, it always reminds me of the cup telephone transaction model.
For us, a hybrid model as the one used by Hyperledger was the wrong choice since it will cause us to be incompatible with neither bitcoin nor ethereum. In Qtum we have a priority to keep full compatibility with bitcoin which will allow us to implement future bitcoin BIPs to Qtum thus taking advantage of the developments done by the bitcoin core team and community.For more details,pls refer below：1) If we wanted just a simple smart contract platform to build on top of, it would’ve been significantly easier for us to just fork Ethereum. 2) The UTXO allows for the SPV protocol to work. Ethereum currently does not have anything like SPV. There’s no way to run a simple wallet on Ethereum without downloading the entire blockchain, or trusting a centralized 3rd party.3) The UTXO model is overall much more simple, and because it’s been used by Bitcoin, it has been thoroughly tested and proven to be secure. Although Ethereum’s account model is conceptually easy to understand, it requires more complexities and edge cases in order to secure it from replay and double spend attacks. 4) Scalibility should not be a problem for Qtum. Although contracts can create state changes etc, these state changes are not directly stored on the blockchain. Rather, state is considered the accumulation of all actions and differences created by executing each smart contract. This could admittingly make syncing the blockchain slower (because block processing will be slower than Bitcoin), but the other benefits provided are worth this performance hit. Furthermore, the only additional thing stored in the UTXO set right now is contract code, and contract-owned outputs (though their data becomes unimportant after the output is initially processed). There may be plans proposed later which prune the UTXO set’s stored data as well, to reduce the UTXO set size further. 5) SPV will work almost identically to how SPV wallets work today. For a quick summary, a light wallet downloads block headers, and then sends P2P nodes requests (using bloom filters) to get all transactions for each block matching the keys that this wallet own. Because the contract system creates normal transactions, this already works. IF you a contract sends funds to a SPV wallet, the SPV wallet will see these funds and can spend them, today. Our next step with SPV wallets would be to implement a workflow so that people can send money to a contract, while also picking which function and what data to send. We do not need to extend the SPV model to work for Qtum, it already works because of our focus on compatibility. 6) Regarding Hyperledger. I’m no expert on it, so I could be wrong. But I think that their support could end up being worst of both worlds. Now, anything wanting to interact with Hyperledger must be capable of dealing with the quirks of both models. From my understanding also, they only support either UTXO or Accounts on one ledger at a time also (though there is much functionality for messaging and sending things between these ledgers). So I do not think it makes Hyperledger’s model better, but rather more complex. Perhaps this complexity provides more power to Hyperledger’s model, but it also introduces more security concerns and increases the implementation cost of Hyperledger itself, and any application that uses it (due to to having to deal with both models)
Q) It extended bitcoin script to accept solidity string but another company called CounterParty have already done it on the Bitcoin public blockchain without having to use a new public blockchain. So where is the need? Furthermore, will qtum have to constantly keep in sync with “solc” the solidity compiler to maintain compatibility?A) Qtum is very different from XCP, XCP uses bitcoin blockchain to store data, and the user have to run XCP software on top of that. Some major drawbacks are the cost of XCP transactions which increased so much that it threatens the whole project now and the complexity to build external software on top of XCP.Qtum aims to offer an all-in-one solution, not based on any external possible points of failure.For solc support, we made Qtum with that in mind, Qtum uses the exact same ethereum VM, so it will run any solidity compiled code, in the case of EVM updates, and we will be easily able to update it in Qtum as well.
Q) Qtum is a new altcoin platform but there are enough ethereum, ripple and bitcoin out there. Why another one? It is not a bridge as I was led to understand. It is another bitcoin fork.A) In addition to my previous reply about Qtum not being just another bitcoin fork, I would like to add that quantum is not the average altcoin, it will be one of the best, if not the best we have all the means for that, and we will do it.You say it is not a bridge, but really it is. It is bridging the technology. We are taking what makes Bitcoin great, and what makes Ethereum great, and bringing them together as one. We expect to bridge not the actual monetary value (ie, the market cap) held in each coin, but rather the communities and separate interest. Right now there is a real divide between serious Ethereum users and developers, and Bitcoin users and developers. By aiming to be compatible with the technology involved with both, we hope to merge these communities and be an answer both for 1) Those who want Ethereum smart contracts, but are uncomfortable with the stability of the Ethereum account model and lack of protocol support such as SPV; and 2) Those who like Bitcoin, but are unhappy with it’s limitations for implementing smart contracts and more powerful types of transactions. We as a team are also tired of these copy-paste coins that people constantly make to try to get a quick buck, and we would not have chosen to make this it’s own altcoin if we had not weighed the cost and benefits very carefully.
Q) What is the block confirmation time? Bitcoin is 10minutes and Ethereum is 18seconds?A) Ethereum blocktime of 18 seconds is a bit exaggerated and causes a lot of empty blocks and uncles thus bloating the blockchain with useless data (which resulted in the currently atrophied ethereum blockchain), and bitcoin block time of 10 minutes is a bit too long for a smart contracts platform. We aim to have a block time of 1 to 3 minutes for Qtum.
Q) I did not go too deep into the details of the POS but the protocol is similar to Peercoin’s DPOS and it maybe susceptible to coin age accumulation attack if the intention is to incentive to miners that leave their stake longer on the chain. In fact it should be the opposite to prevent long range attack, Bitfury and Vitalik has written good articles on the types of attacks it is susceptible to.A) Qtum uses BC PoS v3.0 which has removed all major attack vectors, including coin age accumulation. In conclusion, Qtum will be the first standalone UTXO and PoS based smart contracts platform thus making use of the best available technologies to deliver an outstanding blockchain solution.
—–END—–

A quick documentation update, we are working on the English version of the whitepaper right now and we wanted to give a snapshot of our progress. Later this week we will have some press that talks about our goals, and a bit about our investors.Here is a section 2 snapshot of the whitepaper, it discusses how we integrate the Ethereum Virtual Machine onto Bitcoin Core’s UTXO model, while using Proof-of-Stake as the consensus protocol.
Here is a link where you can download the section, please keep in mind it was written by a developer and has not gone through a final edit:https://qtum.org/QtumDraftSection24.pdf
Right now the PR team has been giving interviews to western media outlets, so when they run an article, we will post it here and on our blog. The signature campaign will start this week, we are just getting the banners designed and calculating the payment schedule.